Sea Otters Hold Hands While They Sleep So They Don't Float Away

When most animals sleep, they find a warm spot, close their eyes, and call it a night. Sea otters, living life entirely on their own terms, decided their cozy spot would be the open ocean — and that they'd be holding hands the whole time.

This behavior is called "rafting," and it involves otters floating on their backs and loosely linking paws to stay together while they sleep. A pair might simply intertwine fingers; a larger group can form a floating cluster of dozens of snoozing, kelp-wrapped furballs drifting gently in the current. Many also wrap themselves in kelp like a natural seatbelt to avoid becoming a solo ocean adventure.

The practical reason is straightforward: the Pacific Ocean has strong opinions about where you end up, and a sleeping otter could wake up miles from its family without an anchor. Holding on is pure survival strategy. The fact that it looks like a scene from a greeting card is just the ocean's way of showing off.

Sea otters spend almost their entire lives in the water — eating, grooming, raising pups, napping. The ocean is their living room, kitchen, and nursery all at once. They just happen to furnish it with each other.